    # File estraierpure.rb, line 563
        def optimize()
          @status = -1
          return false unless @url
          turl = @url + "/optimize"
          reqheads = [ "Content-Type: application/x-www-form-urlencoded" ]
          reqheads.push("Authorization: Basic " + Utility::base_encode(@auth)) if @auth
          rv = Utility::shuttle_url(turl, @pxhost, @pxport, @timeout, reqheads, "", nil, nil)
          @status = rv
          rv == 200
        end